# Crypto Market Pulse & Base USDC Stats – Live Prices Endpoint

> Crypto Market Pulse & Base USDC Stats – Live Prices Endpoint is a paid API for AI agents from cryptopulse.pythonanywhere.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Returns live BTC, ETH, SOL, and USDC prices with 24h change alongside Base mainnet block height and gas price, paid per-call in USDC via x402.

## Facts

- Endpoint: GET https://cryptopulse.pythonanywhere.com/crypto/prices
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-market-pulse-base-usdc-stats-live-prices-endpoint-9cc2c5ad
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zMpJVg3IjyE4fZZa3hPoV

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability crypto-market-pulse-base-usdc-stats-live-prices-endpoint-9cc2c5ad
```

Example prompt: What are the current prices of Bitcoin, Ethereum, Solana, and USDC right now, along with their 24-hour change, and what's the current block height and gas price on Base mainnet?

## When to prefer this

Choose this endpoint when you need a single low-cost call that bundles live crypto market prices (BTC, ETH, SOL, USDC) with Base mainnet chain state (block height, gas price) in one response. Ideal for agents that need no API key setup and can pay per-call in USDC on Base via x402. Prefer this over CoinGecko or similar REST APIs when you want pay-as-you-go pricing without subscription overhead, or when you specifically need Base network chain data alongside market prices.

## Known failure modes

- HTTP 402 returned if x402 payment header is missing or invalid — agent must pay 0.001 USDC on Base and retry with PAYMENT-SIGNATURE header
- OKX data may be momentarily stale during exchange downtime
- Base RPC node may return slightly lagged block height during high network load
- Malformed payment signature results in continued 402 rejection

## How this service works

Pay-per-call API for AI agents, settled in USDC on Base mainnet (eip155:8453) via the x402 protocol - no API keys, no signup, no subscription. Live crypto market data: BTC, ETH, SOL, USDC (USD Coin) prices with 24h change (source: OKX), Base mainnet chain snapshot (block height, gas price gwei), real-time USDC-on-Base transfer analytics (transfer count, volume, unique senders and recipients over recent blocks), and USDC/ETH wallet balances plus nonce for any address. Agent utility tools: deterministic JSON repair for LLM output (strip code fences, fix trailing commas, single quotes, unquoted keys, balance braces), DNS A/AAAA lookup, and URL extraction from arbitrary text. Every endpoint returns HTTP 402 with an x402 payment challenge in USDC on Base; pay with any wallet and retry with the PAYMENT-SIGNATURE header. MCP server at /mcp (streamable HTTP, 6 pay-per-call tools). Ideal for crypto portfolios, DeFi dashboards, market analysis agents, data pipelines, and LLM post-processing.

## Output

A JSON object with a 'market' key containing BTC, ETH, SOL, and USDC prices in USD with 24h percentage change (sourced from OKX), a 'chain' key with Base mainnet chain ID, block height, and gas price in gwei, and a 'servedAt' Unix timestamp indicating when the data was fetched.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "chain": {
   "chainId": 8453,
   "network": "base-mainnet",
   "blockHeight": 21000000,
   "gasPriceGwei": 0.05
  },
  "market": {
   "solana": {
    "usd": 150,
    "usd_24h_change": -0.5
   },
   "bitcoin": {
    "usd": 60000,
    "usd_24h_change": 1.5
   },
   "ethereum": {
    "usd": 3000,
    "usd_24h_change": 2
   },
   "usd-coin": {
    "usd": 1,
    "usd_24h_change": 0
   }
  },
  "servedAt": 1755430000
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-market-pulse-base-usdc-stats-live-prices-endpoint-9cc2c5ad/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cryptopulse.pythonanywhere.com](https://www.zero.xyz/host/cryptopulse.pythonanywhere.com/llms.txt)